WO2007010074A3 - Optical demultiplexer - Google Patents

Optical demultiplexer Download PDF

Info

Publication number
WO2007010074A3
WO2007010074A3 PCT/ES2006/000431 ES2006000431W WO2007010074A3 WO 2007010074 A3 WO2007010074 A3 WO 2007010074A3 ES 2006000431 W ES2006000431 W ES 2006000431W WO 2007010074 A3 WO2007010074 A3 WO 2007010074A3
Authority
WO
WIPO (PCT)
Prior art keywords
wavelengths
bars
incident beam
beams
determined
Prior art date
Application number
PCT/ES2006/000431
Other languages
Spanish (es)
French (fr)
Other versions
WO2007010074A2 (en
Inventor
Dehesa Jose Sanchez
Andreas Hakansson
Original Assignee
Univ Valencia Politecnica
Dehesa Jose Sanchez
Andreas Hakansson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Valencia Politecnica, Dehesa Jose Sanchez, Andreas Hakansson filed Critical Univ Valencia Politecnica
Publication of WO2007010074A2 publication Critical patent/WO2007010074A2/en
Publication of WO2007010074A3 publication Critical patent/WO2007010074A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0256—Compact construction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2846—Investigating the spectrum using modulation grid; Grid spectrometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0944—Diffractive optical elements, e.g. gratings, holograms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29305—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/29311—Diffractive element operating in transmission

Abstract

The invention relates to a demultiplexer comprising an ultra-compact device which spatially separates an incident beam (4) into at least two beams (5, 6) having wavelengths (λ-1, λ2), forming a pre-fixed angle (α) therebetween. The device, which is represented by two grilles (2) comprising bars (1), consists of a plurality of layers of bars (1) which are made from a dielectric material. The invention also comprises a plane (3) which defines the area at which such wavelengths (λ1, K2) are collected for analysis and which is located at a distance (Xf) from the device. The dispersed beams (5, 6) have a determined width (δ) and are separated from the axis of the incident beam (4) by a separation distance (d). According to the invention, the thickness of the device, the cross-section of the bars and the material used are determined by the required separation angle (α) and are optimised in order to minimise crosstalk between optical channels at said wavelengths (λ1, K2).
PCT/ES2006/000431 2005-07-22 2006-07-21 Optical demultiplexer WO2007010074A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200501891 2005-07-22
ES200501891A ES2297981B2 (en) 2005-07-22 2005-07-22 OPTICAL DEMULTIPLEXER.

Publications (2)

Publication Number Publication Date
WO2007010074A2 WO2007010074A2 (en) 2007-01-25
WO2007010074A3 true WO2007010074A3 (en) 2007-05-03

Family

ID=37669175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2006/000431 WO2007010074A2 (en) 2005-07-22 2006-07-21 Optical demultiplexer

Country Status (2)

Country Link
ES (1) ES2297981B2 (en)
WO (1) WO2007010074A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773063A (en) * 1984-11-13 1988-09-20 University Of Delaware Optical wavelength division multiplexing/demultiplexing system
US6721476B2 (en) * 2001-12-03 2004-04-13 Honeywell International Inc. Optical demultiplexer based on three-dimensionally periodic photonic crystals
WO2005017570A2 (en) * 2003-08-06 2005-02-24 University Of Pittsburgh Surface plasmon-enhanced nano-optic devices and methods of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773063A (en) * 1984-11-13 1988-09-20 University Of Delaware Optical wavelength division multiplexing/demultiplexing system
US6721476B2 (en) * 2001-12-03 2004-04-13 Honeywell International Inc. Optical demultiplexer based on three-dimensionally periodic photonic crystals
WO2005017570A2 (en) * 2003-08-06 2005-02-24 University Of Pittsburgh Surface plasmon-enhanced nano-optic devices and methods of making same

Also Published As

Publication number Publication date
ES2297981A1 (en) 2008-05-01
ES2297981B2 (en) 2008-12-01
WO2007010074A2 (en) 2007-01-25

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